Transformers : flux leakage and saturation current

AI Thread Summary
Saturation current refers to the point where all magnetic domains in a material are aligned, while flux leakage is the magnetic flux from the primary coil that does not reach the secondary coil. These two concepts are not directly related because saturation current deals with magnetic alignment, whereas flux leakage pertains to the efficiency of magnetic coupling between coils. Flux leakage can actually increase inductance because it contributes additional magnetic flux that links back to the primary coil, enhancing self-inductance. In an ideal transformer, the resistive load on the secondary side reflects as a resistive load on the primary side, and increased flux leakage results in greater self-inductance observed on the primary side. Understanding these relationships is crucial for analyzing transformer performance.
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Can anyone explain why saturation current and flux leakage are not related?

saturation current = current where all the magnetic domains are aligned right?

flux leakage = flux from the primary that doesn't reach the 2ndary

can someone also explain why, flux leakage causes a increase in inductance? (shouldn't it decrease inductance as L = flux/i )
 
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Where a current in a coil produces flux which links that coil you have inductance. The more flux that is produced by the current, the more self-inductance you have.

In an ideal transformer, a resistive load on the secondary is reflected and seen on the primary side as a resistive load on the primary power supply. If the primary current also produces some flux which links only the primary coil, that is seen as inductance on the primary side. The more flux leakage that current causes, the greater the self-inductance.
 
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